package c8;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * 扩展线程池
 */
public class ExtThreadPool {
    public static class MyTask implements Runnable {
        public String name;
        public MyTask(String name){
            this.name=name;
        }
        @Override
        public void run() {
            System.out.println("正在执行:Thread ID:" + Thread.currentThread().getId()+",Task Name="+name);
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) throws InterruptedException {
        ExecutorService es=new ThreadPoolExecutor(5,5,0L, TimeUnit.MILLISECONDS,new LinkedBlockingQueue<Runnable>()){
            @Override
            protected void beforeExecute(Thread t, Runnable r) {
               System.out.println("准备执行："+((MyTask)r).name);
            }

            @Override
            protected void afterExecute(Runnable r, Throwable t) {
                System.out.println("执行完毕："+((MyTask)r).name);
            }

            @Override
            protected void terminated() {
                System.out.println("线程池退出！");
            }

        };
        for(int i=0;i<5;i++){
             es.execute(new MyTask("TASK-GEYM-"+i));
             Thread.sleep(100);
        }
        es.shutdown();
    }
}
